VS Energy is a Lancaster, New York engineering and systems-integration firm that helps industrial, military, commercial and municipal facilities reduce energy use and improve building performance. With more than 30 years of experience, the company is notably vendor-independent, using field measurements and data-driven analysis before designing solutions rather than selling equipment or controls. Its principals have audited more than 200 commercial and 500 industrial facilities, and the company also developed the patented LightAway dynamic lighting wayfinding system for emergency occupant guidance.